Dithiapolyether diol, method for producing same, snag plating solution containing dithiapolyether diol, and method for forming plating film with use of snag plating solution

Abstract

This dithiapolyether diol has a halogen content of less than 10 ppm and a purity of 80% or more and is represented by the following general formula (1) or (2). In the general formula (1) or (2), x and y are arbitrary natural numbers

1 . Dithiapolyether diol,
 wherein a halogen content is 10 ppm or less, a purity is 80% or more, and the dithiapolyether diol is represented by the following general formula (1) or (2), and   in the general formula (1) or (2), x and y are arbitrary natural numbers,   
       
         
           
           
               
               
           
         
       
     
     
         2 . The dithiapolyether diol according to  claim 1 ,
 wherein a color number in Hazen units (APHA) as measured according to JIS K 0071-1 (1998) is 100 or less.   
     
     
         3 . A SnAg plating solution comprising:
 the dithiapolyether diol according to  claim 1 .   
     
     
         4 - 8 . (canceled)